So I have been searching and thinking but I still haven't found an answer. Basically, intermittently my alternator way over charges. It reads 18vdc at the battery. To solve the problem I replaced the stock alternator with a CS130 and did the big 3 while I was at it. But it didn't fix the problem. So I looked at the schematics and the only guess I could came up with is that the sense wire is reading the wrong voltage. So while it was running at 18vdc I reached over with my wire cutters and clipped the sense wire and the voltage dropped to 14.4vdc and it has been fine ever since. However my OCD is driving me crazy and I want to figure out whats wrong with the sense wire so I can hook it up right. Does anyone have any ideas on what could be the problem?

 

What year Escalade are speaking of? J/K.
Always specify model-year-engine-transmission-trim

Replying to your post in "1986 ... trucks"